Part Number: LM5143-Q1
Other Parts Discussed in Thread: LM5143
I'm using LM5143 to generate single output (28Vin to 12Vout @ 30A). No internal VDD +5V generated. Grounded VCCX pin. During input voltage fall transient +5V raised at that instant. Continous LM5143 IC failure was observed.
CH1- +28V input voltage
CH2- +5V Internal VDD.
